Exercising-machine.



E. J. KERNS.

EXERCISING MACHINE,

APPLICATION FILED DEC. 30, 1914.

Patented May 11, 1915.

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oFFIoE.

EDWARD J. KERNS, OF WORCESTER, MASSACHUSETTS.

Expensive- ACHINE.

Specification of Letters Patent.

Application filed December 30, 1914. $eria1 No. 879,647.

To all whom it may concern:

Be it known that I, EDWARD J. KERNS, a citizen of the United States, residing at Worcester, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Exercising-Machines, of which the following is a specification. I I

My invention relates to an exercising machine, and to that ty e of exercising machines in which cor s, with handles attached, are used, and in which the cords are drawn out under tension, by the operator, and then returned automatically to their first position.

The object of my invention is to provide an improved exercising machine of the type referred to, which is portable, and which may be set up and readily attached to the floor, or wall of a room, and the operation of the machine may be regulated, so that it may be used by young persons, or by grown up persons.

A further object of my improved exercising machine is to adapt it to be combined with, and used in connection with a detached cock pit of a rowing boat, having a sliding seat, and foot holders, so that my exercising machine may be used as a rowing machine.

My invention consists in certain novel features of construction of my exercising machine as will be hereinafter fully described.

In my improved exercising machine, I

provide preferably two rotary wheels pr drums, each having a cord wound around the same, with one end attached thereto and the other end provided with a handle, and each drum has its hub mounted on a shaft, and one end of a spring is connected with the drum, and the other end of said spring is connected with a stationary part of the frame of the machine, said spring referably extends within an annular c amber formed on the frame, and extends around the hub and within the periphery of the drum, and acts to control the rotary motion of the drum.- In connection with each rotary drum, a friction strap, preferably encircling a side flange on the rotary drummay be used, to increase the tension on the drum, all as will be hereinafter ul y described.

Referring to the drawing: Fig re 1 is a Patented. May 11, 1915. i

with; one of the friction straps is shown in its inoperative position. Fig. 2 shows, on

an enlarged scale, an end view of the exercisingnniachine shown at the right in Fig. 1, loo 'ng in the direction of arrow a, same figure; the cords and handles are shown in their inner position, as shown by broken lines in Fig.1. Fig. 3 is a central vertical section, .on line 3, 3, Fig. 2 lookin in the direction .of arrow 12, same figure. gig. 4 is a section, on line 4, 4, Fig. -3, lookingm the direction of arrow 0, showing the operating spring in its extended position, when the cords and handles are in their inner position; the handle on the cord is not shown,

and, Fig. 5 corresponds to Fig. 4, but shows the operatin spring in its contracted position, when t e cords and handles are fully drawn out, preparatory to being returned by the ex ansion of the spring.

In t e accompanying drawing, 1 is the frame of the exercising machine, which is preferably made .of cast metal, and has the ase .1, which, in this instance, has attached to its rear edge two hooks or attaching devices 2, adapted to be connected with screw eyes, or other devices, for holding the exersired position, either on the floor, or on the,

wall.

The frame' 1 has the central 11 right stand 1", on each side of which, an preferabiy integral therewith, is an annular recessed ortion or chamber 1". The cen tral stand 1" has a transverse 0 ening therethrou h, and forms a hearing or the shaft ,3. 5 rotary drums, which are of similar construction. Each drum 4 has a hub 4', which is loosely mounted on the shaft 3, and in this instance held in place thereon by a washer 5, and a bolt or screw 6 at each end of the sh 3.- he hub 4: of h r t y d m 4 extends within the annular chamber 1 on the frame 1 Each drum 4 has its periphery grooved or recessed to rec ive a cord '1,

n the shaft 3 are mounted two,

- which is wound around said drum, and at- .4 and 5, and at its other end to the hub 4 of the drum 4. Extending out fr'om each drum 4 is, in this instance, an annular lip or flan e 4", around which passes a strap of leat er, or other suitable material 10, which, in this instance, has a hook 10 attached to one end which is attached to a stand 11, secured in this instance to the base 1. The other end of the strap 10- has a pin 12 secured thereto, which passes loosely through an opening in the stand 11, and has a threaded end, on which is mounted a .thumbnut 13. 'A helically coiled expansion spring 14 extends between said nut 13 and the stand 11. By turning in or out the nut 13, on the pin '12, the fr ction of the strap 10 on the annularflange 4'. on the rotary drum 1, is increased or diminished as desired.

On the top of the stand 1" is secured, by bolts 15,:a plate 16 which has thereon a bar 16', having oppositely extending arms 16", whichextend over the recessed peripheries of the rotary drums 4 at the rear part of the machine, and are preferably curved on their inner edge, as shown in Fig. '1. The oppositely extending arms 16" act to limit the inward movement of the handles 8, and to hold them in their inward position, as shown by broken lines in Fig.1, and byfull lines in .Fig. '2. The oppositely extending arms .16" alsofact to hold the'cords 7 on the pulleys 4, and to guide said cords and prevent them from running. ofi' the pulleys;

r In connection with my exercisingmachine above described, I may use adetached cock pit of a rowing boat, to obtain'theresults of a rowin machine. The cock it may be of any ordinary construction, and as shown in Fig. 1 consists, of the track 17, shown broken away at the left, for the sliding seat 18. The track'17 is in this instance sup-.

ported upon andlattached at one end. to a transverse bar 19,"whichis securedto a central bar orsupport'20. The. frontend of the bar 20 is adapted inthis instance to ex.-

tend through the opening 1 in the upright stand l"..on the frame 1 ,of'the exercising machine, and is detachably secured to the frame of the machine by bolts, or otherwise.

. 21 are two foot rests, which are attached to bar 20, and are providedwith foot straps 23,

a transverse bar 22 secured to-hthe central in the ordinarj way; p I From the above descrlption-in conneetm with the drawing, the operation of my ex- .ercising machine may be readily understood by those skilled inthe art. If it is desired to use the machine without the rowing at- I tachment, the bar 20 ofthe cock pit is detached from the frame 1. of the exercising machine. The base 1 of the exercising machine is .secured to the wall, or to the floor of a room, to hold it in a fixed position. If it is desired to use the machine for light exercise, or for children, the friction straps 10 are loosened, or detached from the rotary drums by moving them outwardly, as shown in the upper part of Fig. 1. The handles 8 are grasped by the hands of the user, and

are drawn out together, or separately, as desired, to unwind the cord 7 from v the rotary drums, against the action of thdspring 9 connected with each drum, to wind up .said spring 9, see Fig. 5. The unwinding of the spring 9 will return the; cords 7 and handles 8 to their inner position, see Fig. 4. When it is desired tovincrease thefriction on the drums, the strap 10 is replaced, and the nut 13 turned in on the pin 12. When it is desired to use the exercising machine as a rowing machine, thecock. pit, shown in Fig. 1, is attached to the frame 1 of the exercising machine, and the exercising machine is used in the same manner as above described, the user sittin on the sliding seat 18 with his feet in the cot tests 21.

By my construction of an exercising. machine, a great variety of movements of the arms may be obtained with the cords and handles, and also a great variety of movements of the body, and the cords may be operated by the feet of the user, by placing the toe part of the foot within the handle, to

obtain a variety of movements of the legs. The movement of the legs is also obtained in using the exercising machine in connection with the cock pit of a rowing boat.

It will be understood that the details of construction of my improvements may be varied if desired. Instead of two rota drums, one rotary drum may be used wi good results. r

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is: i

1. In an exercising machine, the icombination with a portable frame or stand, adapted to be secured in position, and a shaft mounted on said frame, of two rotary drums mounted on said shaft, each drnmhaving to be secured in position, and a shaft mountto guide said cord and hold it on said drum, ed on said frame, of a rotary drum mounted and stop the Winding of said cord on said on said shaft, said drum having a cord drum.

Wound around the same and connected'there- EDWARD J KERNS. 5 with, and a spring connected with said Witnesses: I I

drum, and also with said frame, to control JOHN C. DEMEY,

the rotary motion of said'drum, and means MINNA HAAs. 

